Walnut Park is a community park located in Arkansas City, Kansas, just east of the Walnut River, and just north of US-166 highway. This park is also known as "Aunt Sally's Landing", so called because of a steamboat named "Aunt Sally" that traveled the Arkansas River from Fort Smith, Arkansas.

Walnut Park offers both RV and tent camping, and amenities include restrooms, grills, and picnic tables.

A camping permit is required from the city, and it must be clearly posted at the location of the tent. The cost of the permit is $15.